UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ze8pXqXJGhzGil/fW9DOQ4oSSA8U0sEhWbjeNmXHNs4=' 
WHERE 
  key_id = '50bf9921c26d6f870a20c5f99e39bf2db78026c368b4adb00284c093ceef349c' 
  AND (
    token = 'Ze8pXqXJGhzGil/fW9DOQ4oSSA8U0sEhWbjeNmXHNs4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )